TPIC8101

現行

震動和引擎爆震感測器介面

產品詳細資料

Number of channels 2 CPU interface SPI Operating voltage (V) -0.03 to 5.5 Rating Automotive Operating temperature range (°C) -40 to 125
Number of channels 2 CPU interface SPI Operating voltage (V) -0.03 to 5.5 Rating Automotive Operating temperature range (°C) -40 to 125
SOIC (DW) 20 131.84 mm² 12.8 x 10.3
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature Range
    • Device HBM Classification Level 3A
    • Device CDM Classification Level C6
  • Dual-Channel Knock Sensor Interface
  • Programmable Input Frequency Prescaler
    (OSCIN)
  • Serial Interface With Microprocessor (SPI)
  • Programmable Gain
  • Programmable Band-Pass Filter Center Frequency
  • External Clock Frequencies up to 24 MHz
    • 4, 5, 6, 8, 10, 12, 16, 20, and 24 MHz
  • Programmable Integrator Time Constants
  • Operating Temperature Range –40°C to 125°C
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature Range
    • Device HBM Classification Level 3A
    • Device CDM Classification Level C6
  • Dual-Channel Knock Sensor Interface
  • Programmable Input Frequency Prescaler
    (OSCIN)
  • Serial Interface With Microprocessor (SPI)
  • Programmable Gain
  • Programmable Band-Pass Filter Center Frequency
  • External Clock Frequencies up to 24 MHz
    • 4, 5, 6, 8, 10, 12, 16, 20, and 24 MHz
  • Programmable Integrator Time Constants
  • Operating Temperature Range –40°C to 125°C

The TPIC8101 is a dual-channel signal processing IC for detection of premature detonation in combustion engine. The two sensor channels are selectable through the SPI bus. The knock sensor typically provides an electrical signal to the amplifier inputs. The sensed signal is processed through a programmable band-pass filter to extract the frequency of interest (engine knock or ping signals). The band-pass filter eliminates any engine background noise associated with combustion. The engine background noise is typically low in amplitude compared to the predetonation noise.

The detected signal is full-wave rectified and integrated by use of the INT/HOLD signal. The digital output from the integration stage is either converted to an analog signal, passed through an output buffer, or be read directly by the SPI.

This analog buffered output may be interfaced to an A/D converter and read by the microprocessor. The digital output may be directly interfaced to the microprocessor.

The data from the A/D enables the system to analyze the amount of retard timing for the next spark ignition timing cycle. With the microprocessor closed-loop system, advancing and retarding the spark timing optimizes the load/RPM conditions for a particular engine (data stored in RAM).

The TPIC8101 is a dual-channel signal processing IC for detection of premature detonation in combustion engine. The two sensor channels are selectable through the SPI bus. The knock sensor typically provides an electrical signal to the amplifier inputs. The sensed signal is processed through a programmable band-pass filter to extract the frequency of interest (engine knock or ping signals). The band-pass filter eliminates any engine background noise associated with combustion. The engine background noise is typically low in amplitude compared to the predetonation noise.

The detected signal is full-wave rectified and integrated by use of the INT/HOLD signal. The digital output from the integration stage is either converted to an analog signal, passed through an output buffer, or be read directly by the SPI.

This analog buffered output may be interfaced to an A/D converter and read by the microprocessor. The digital output may be directly interfaced to the microprocessor.

The data from the A/D enables the system to analyze the amount of retard timing for the next spark ignition timing cycle. With the microprocessor closed-loop system, advancing and retarding the spark timing optimizes the load/RPM conditions for a particular engine (data stored in RAM).

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類型 標題 日期
* Data sheet TPIC8101 Knock Sensor Interface datasheet (Rev. C) PDF | HTML 2015年 3月 23日
EVM User's guide TPIC8101 EVM User's Guide 2015年 12月 18日
Technical article Performance comparison between two automotive knock sensors PDF | HTML 2015年 6月 23日
Analog Design Journal How to set-up a knock-sensor signal-conditioning system 2014年 7月 15日
Application note TPIC8101 Knock Sensor Interface Technical Brief 2009年 1月 9日

設計與開發

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開發板

TPIC8101EVM — TPIC8101 車用爆震感測器評估模組

The TPIC8101EVM provides an easy method for evaluating the TPIC8101 automotive knock sensor interface IC.  Software is included to quickly program the TPIC8101, and the included USB interface board provides all necessary signals to connect the TPIC8101 EVM to a knock sensor or a knock sensor (...)

使用指南: PDF
TI.com 無法提供
開發模組 (EVM) 的 GUI

SLIC023 TPIC8101 EVM GUI

支援產品和硬體

支援產品和硬體

產品
UART
TPIC8101 震動和引擎爆震感測器介面
硬體開發
開發板
TPIC8101EVM TPIC8101 車用爆震感測器評估模組
模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
模擬工具

TINA-TI — 基於 SPICE 的類比模擬程式

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
使用指南: PDF
參考設計

TIDA-00152 — 車用聲學爆震感測器介面參考設計

This TIDA-00152 reference design utilizes a dual-channel, signal processing IC for detection of premature detonation in combustion (gasoline) engines. The heart of this design is the TPIC8101 that serves as an interface between acoustical sensors or accelerometers and automobile engine management (...)
Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (DW) 20 Ultra Librarian

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